perfcnt.c File Reference

#include <k32.h>
#include <debug.h>

Include dependency graph for perfcnt.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
BOOL WINAPI	QueryPerformanceCounter (OUT PLARGE_INTEGER lpPerformanceCount)
BOOL WINAPI	QueryPerformanceFrequency (OUT PLARGE_INTEGER lpFrequency)

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 13 of file perfcnt.c.

Function Documentation

QueryPerformanceCounter()

BOOL WINAPI QueryPerformanceCounter

(

OUT PLARGE_INTEGER

lpPerformanceCount

)

Definition at line 23 of file perfcnt.c.

{
    LARGE_INTEGER Frequency;
    NTSTATUS Status;
 
    Status = NtQueryPerformanceCounter(lpPerformanceCount, &Frequency);
    if (Frequency.QuadPart == 0) Status = STATUS_NOT_IMPLEMENTED;
 
    if (!NT_SUCCESS(Status))
    {
        BaseSetLastNTError(Status);
        return FALSE;
    }
 
    return TRUE;
}

Referenced by __security_init_cookie(), CookupNodeId(), currenttime_us(), DwmGetCompositionTimingInfo(), GetPerfTime(), GetSecondsQPC(), GetTickCountQPC(), main(), master_IReferenceClock_GetTime(), QueryTime(), Timer::restart(), Timer::start(), Timer::stop(), SystemFunction036(), test_clock(), test_RegQueryValueExPerformanceData(), timeGetTime(), and wined3d_get_adapter_raster_status().

QueryPerformanceFrequency()

BOOL WINAPI QueryPerformanceFrequency

(

OUT PLARGE_INTEGER

lpFrequency

)

Definition at line 45 of file perfcnt.c.

{
    LARGE_INTEGER Count;
    NTSTATUS Status;
 
    Status = NtQueryPerformanceCounter(&Count, lpFrequency);
    if (lpFrequency->QuadPart == 0) Status = STATUS_NOT_IMPLEMENTED;
 
    if (!NT_SUCCESS(Status))
    {
        BaseSetLastNTError(Status);
        return FALSE;
    }
 
    return TRUE;
}

Referenced by currenttime_us(), DwmGetCompositionTimingInfo(), GetPerfTime(), GetSecondsQPC(), GetTickCountQPC(), main(), master_clock_create(), test_clock(), test_RegQueryValueExPerformanceData(), timeBeginPeriod(), Timer::Timer(), wined3d_get_adapter_raster_status(), and wmain().